Finding the Third Proportional to 40,867.50 and 54,919.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,867.50 : 54,919.50 = 54,919.50 : x
2. Step 2: Convert to fraction form
   40,867.50/54,919.50 = 54,919.50/x
3. Step 3: Cross multiply
   40,867.50x = 54,919.50 × 54,919.50
4. Step 4: Simplify right side
   40,867.50x = 3,016,151,480.25
5. Step 5: Solve for x
   x = 3,016,151,480.25/40,867.50
6. Step 6: Final answer
   x = 73,803.18